package com.itrip.trade.controller;

import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.baomidou.mybatisplus.extension.api.R;
import com.itrip.beans.pojo.HotelOrder;
import com.itrip.trade.config.AlipayConfig;
import com.itrip.trade.service.OrderService;
import com.itrip.utils.dto.Dto;
import com.itrip.utils.util.EmptyUtils;
import com.itrip.utils.vo.DtoUtil;
import lombok.extern.log4j.Log4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;

/**
 * @Author: 周勉
 * @date: 2020/3/13 18:10
 */
@RestController
@RequestMapping("/trade/api")
public class PaymentController {
    @Autowired
    private OrderService orderService;

    @GetMapping("/prepay/{orderNo}")
    public String prePay(@PathVariable String orderNo, ModelMap model,HttpServletResponse response) throws IOException {
        try {
            HotelOrder order = orderService.loadItripHotelOrder(orderNo);//订单的查询

            if (!EmptyUtils.isEmpty(order)) {
                //获得初始化的AlipayClient
                AlipayClient alipayClient = new DefaultAlipayClient(AlipayConfig.gatewayUrl, AlipayConfig.app_id, AlipayConfig.merchant_private_key, "json", AlipayConfig.charset, AlipayConfig.alipay_public_key, AlipayConfig.sign_type);
                //设置请求参数
                AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
                alipayRequest.setReturnUrl(AlipayConfig.return_url);
                alipayRequest.setNotifyUrl(AlipayConfig.notify_url);

                //商户订单号，商户网站订单系统中唯一订单号，必填
                String out_trade_no = order.getOrderNo();// request.getParameter("orderNo");
                //付款金额，必填
                String total_amount = order.getPayAmount().toString();//  request.getParameter("payAmount");
                //订单名称，必填
                String subject = order.getHotelName();//request.getParameter("hotelName");
                //商品描述，可空
                String body = order.getHotelName();

                alipayRequest.setBizContent("{\"out_trade_no\":\"" + out_trade_no + "\","
                        + "\"total_amount\":\"" + total_amount + "\","
                        + "\"subject\":\"" + subject + "\","
                        + "\"body\":\"" + body + "\","
                        + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");
                //请求
                String result = alipayClient.pageExecute(alipayRequest).getBody();
                return result;
            } else {
                response.sendRedirect("/trade/api/notfound");
            }
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            response.sendRedirect("/trade/api/notfound");
            return "";
        }
        return "";
    }

    @GetMapping("/notfound")
    public String notfound() {
        return "暂无数据";
    }

    /**
     * 支付宝服务器异步通知
     */
    @GetMapping("/notify")
    public String notify(HttpServletRequest request,HttpServletResponse response) throws AlipayApiException, UnsupportedEncodingException {
        Map<String, String> params = new HashMap<String, String>();
        Map<String, String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext(); ) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
            valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }

        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); //调用SDK验证签名

        //——请在这里编写您的程序（以下代码仅作参考）——

	/* 实际验证过程建议商户务必添加以下校验：
	1、需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
	2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
	3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
	4、验证app_id是否为该商户本身。
	*/
        //商户订单号
        String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"), "UTF-8");

        //支付宝交易号
        String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"), "UTF-8");

        //交易状态
        String trade_status = new String(request.getParameter("trade_status").getBytes("ISO-8859-1"), "UTF-8");
//        try {
            if (signVerified) {//验证成功

                if (trade_status.equals("TRADE_FINISHED")) {
                    //判断该笔订单是否在商户网站中已经做过处理
                    //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                    //如果有做过处理，不执行商户的业务程序
                    if(!orderService.processed(out_trade_no))
                    {
                        orderService.paySuccess(out_trade_no, 2,trade_no);
                    }
                    //注意：
                    //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
                } else if (trade_status.equals("TRADE_SUCCESS")) {
                    //判断该笔订单是否在商户网站中已经做过处理
                    //如果没有做过处理，根据订单号（out_trade_no）在商户网站的订单系统中查到该笔订单的详细，并执行商户的业务程序
                    //如果有做过处理，不执行商户的业务程序
                    if(!orderService.processed(out_trade_no))
                    {
                        orderService.paySuccess(out_trade_no, 2,trade_no);
                    }
                    //注意：
                    //付款完成后，支付宝系统发送该交易状态通知
                }

                return "success";
//                response.sendRedirect("/trade/api/success");

            } else {//验证失败
                orderService.payFailed(out_trade_no,1,trade_no);
                return "fail";
//                response.sendRedirect("/trade/api/fail");
            }
//        } catch (IOException e) {
//            e.printStackTrace();
//        }
    }

    /**
     *支付宝服务器同步通知
     */
    @GetMapping("/returns")
    public String returns(HttpServletRequest request,HttpServletResponse response) throws UnsupportedEncodingException, AlipayApiException {
        Map<String,String> params = new HashMap<String,String>();
        Map<String,String[]> requestParams = request.getParameterMap();
        for (Iterator<String> iter = requestParams.keySet().iterator(); iter.hasNext();) {
            String name = (String) iter.next();
            String[] values = (String[]) requestParams.get(name);
            String valueStr = "";
            for (int i = 0; i < values.length; i++) {
                valueStr = (i == values.length - 1) ? valueStr + values[i]
                        : valueStr + values[i] + ",";
            }
            //乱码解决，这段代码在出现乱码时使用
            valueStr = new String(valueStr.getBytes("ISO-8859-1"), "utf-8");
            params.put(name, valueStr);
        }
        //商户订单号
        String out_trade_no = new String(request.getParameter("out_trade_no").getBytes("ISO-8859-1"),"UTF-8");

        //支付宝交易号
        String trade_no = new String(request.getParameter("trade_no").getBytes("ISO-8859-1"),"UTF-8");

        //付款金额
        String total_amount = new String(request.getParameter("total_amount").getBytes("ISO-8859-1"),"UTF-8");
        String ulr = "http://localhost:3000/#/myinfo";
        boolean signVerified = AlipaySignature.rsaCheckV1(params, AlipayConfig.alipay_public_key, AlipayConfig.charset, AlipayConfig.sign_type); //调用SDK验证签名

            //——请在这里编写您的程序（以下代码仅作参考）——
            if(signVerified) {
                if(!orderService.processed(out_trade_no))
                {
                    orderService.paySuccess(out_trade_no, 2,trade_no);
                }
                //提示支付成功
                try {
                    response.sendRedirect(ulr);
                } catch (IOException e) {
                    e.printStackTrace();
                }
                return ""+ulr;
            }else {
                return "验签失败";
            }
    }
}
